A. They produce only water B. They produce substances that other organisms need C. They produce only carbon dioxide D. They produce things for themselves only 相关知识点: 试题来源: 解析 B。解析:植物被称为生产者是因为通过光合作用它们制造出其他生物所需要的物质,比如氧气和有机物。选项A说只产生...
A plant's endodermis is a single cylindrical layer of cells that does not permit water to flow between the cells. Not all plants have an endodermis, but the structure plays an important role in transporting water from the ground via the roots up through the rest of the plant. The endodermi...
Water is important for plants. Plants absorb water through their roots. What happens if plants don't get enough water? A. They grow taller. B. They turn yellow and die. C. They produce more flowers. D. They become stronger. 相关知识点: ...
A. To produce oxygen and water. B. To produce oxygen and glucose. C. To produce carbon monoxide and glucose. D. To produce nitrogen and glucose. 相关知识点: 试题来源: 解析 B。原因:文中提到“Plants use carbon dioxide during photosynthesis to produce oxygen and glucose.”。 反馈...
根据文章第一段第二行“All that most plants need to grow is air, sunlight and soil.(大多数植物生长所需要的只是空气、阳光和土壤。)”可知,答案选C。28【答案】A【解析】本题为细节题,题目问的是什么不是我们需要的主要食物之一?A.蔬菜。B.大米。C.小麦。D.玉米。根据文章第三段第一行“Our main ...
百度试题 结果1 题目What do forests give us? A. Produce fresh oxygen. B. Purify water and air. C. Provide people with jobs. D. Help in regulating temperature and rainfall. 相关知识点: 试题来源: 解析 A,B,C,D 反馈 收藏
Their root systems can penetrate deep into the ground, absorbing water and nutrients, while their leaves produce energy through photosynthesis. Plants also have the ability to reproduce, either through seeds, spores, or asexual reproduction. 2. Yes, I do. The growth and reproduction process of ...
用所给词的适当形式填空. 1.The book describes how tea plants (grow)and used to make tea. 2.It also discusses where the finest tea leaves (produce)and what kinds of water (use). 3.One of the world's favorite drinks (invent)by accident. 4.Tea ___(bring)t
What do we know about photosynthesis? A. It helps plants to produce energy. B. It is regarded as a productive system for plants. C. It can increase leaf growth on plants by 14 percent. D. It is made up of sunlight,water and carbon dioxide. 相关知识点: 试题来源: ...
Then they have to get water from plants. 2. When/ If they are ill, there are no hospitals. The people have to get medicine from plants too. They are the San, 3.__the_ last people living in the Kalahari. The San people have another name—"bush people". 4. Their(they) life...